It is not recommended to drink astragalus in water for a long time, astragalus has the effect of tonifying qi and consolidating the surface (consolidating the muscle surface by tonifying qi), etc. It should be used in accordance with the doctor’s prescription. Astragalus is not suitable for all groups of people. It is not suitable for those who have a solid surface and a strong evil (those who have an external infection and a heavy evil), those who have sores and ulcers at the beginning of the disease, or those whose heat and poison are still prevalent after the sores and ulcers have collapsed, or those who have stagnant qi and dampness, or those who have a deficiency of yin and a hyperactivity of yang (deficiency of yin fluid and hyperactivity of yang). Although the pharmacopeia does not specify the adverse reactions of astragalus, but it is not recommended to take astragalus for a long period of time, but the drugs are all with certain properties, long-term use may cause discomfort in the body, need to follow the doctor’s instructions to take. Astragalus has the ability to replenish qi and solidify the surface, elevate the sun to stop sweating, generate fluid and nourish blood (replenish the body’s water and blood), diuretic and eliminate swelling (facilitate urination and eliminate edema), toxin and pus drainage (discharge pus and poison in the body), and astringent sores and muscle growth (help the sores to heal more quickly, and promote the growth of new flesh) and other effects. It can be used in diseases such as qi deficiency, qi deficiency and edema, Zhongqi subsidence (deficiency of the spleen and stomach qi, with the appearance of visceral organs falling down, etc.), surface deficiency and spontaneous sweating (due to the weakness of the surface of the muscles and frequent sweating naturally), blood deficiency and atrophy, hemiplegia (the inability of one side of the limbs to move at will) and so on. As well as carbuncles and gangrene (a kind of poisonous sores, acute suppurative diseases occurring on the body surface, limbs and internal organs) are difficult to be ulcerated, or long ulcerated without convergence and other diseases. The drug should not be taken on its own, and should be used reasonably under the guidance of a doctor’s diagnosis.